Continuum theory of superflow in supersolid 4He:: A review

被引：0

作者：

Saslow, Wayne M. ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

来源：

Recent Progress in Many-Body Theories, Proceedings | 2006年 / 10卷

关键词：

superfluidity; supersolid; solid; 4He;

D O I：

10.1142/9789812772787_0013

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The recent observation of non-classical rotational inertia in solid He-4 for temperatures T < 200 mK, and the continued non-observation of unusual flow associated with "zeropoint defectons", favors the Leggett picture of Non-Classical Rotational Inertia over the Andreev-Lifshitz zero-point defecton picture of possible superflow in this system. We discuss the nature of the wave function, the Leggett one-body phase function upper bound for the superfluid fraction, and more complex forms for the phase-function and how this affects the net momentum density of this many-body system. The general properties of quantum vortices in such a system are briefly discussed.

引用

页码：127 / 137

页数：11

共 50 条

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